d124: 3的倍数

題目:http://zerojudge.tw/ShowProblem?problemid=d124
程式碼:

import java.math.BigInteger;
import java.util.Scanner;
public class d124 {

 public static void main(String[] args) {
  // TODO Auto-generated method stub
  Scanner sc = new Scanner(System.in);
  while(sc.hasNext()){
   String n = sc.nextLine();//輸入數字
    BigInteger num = new BigInteger(n); 
       BigInteger three = new BigInteger("3");
       BigInteger zero = new BigInteger("0"); 
       if(num.mod(three).equals(zero)){
        System.out.println("yes");
       }
       else{
        System.out.println("no");
       }
  }

 }

}